What is the repair or restoration of equipment required to correct a failure that has occurred or is in the process of occurring?

• A. Preventative Maintenance
• B. Predictive Maintenance
• C. Corrective Maintenance
• D. Reliability Centered Maintenance

Answer: (C)

Corrective maintenance is the repair or restoration of equipment required to correct a failure that has occurred or is in the process of occurring. It’s the reactive type of maintenance, done after something breaks or shows signs of imminent failure to bring the asset back to full operating condition. This differs from preventive maintenance (scheduled tasks to prevent failures), predictive maintenance (using data to predict when a failure will occur), and Reliability Centered Maintenance (a broader framework to decide which tasks are most effective for keeping a system reliable). Since the scenario focuses on repairing or restoring after a failure, corrective maintenance is the best fit.